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Retire various intertwined bits of fbd(4) and vt_fb, in particular the

Browse source 
pixel modification indirection. No actual drivers use it and those that
might (e.g. creatorfb) use custom implementations of vd_bitbltchr().
This commit is contained in:
Nathan Whitehorn 2014-08-06 00:35:48 +00:00
parent ca0a6da1a2
commit 9ed297c83c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269620
8 changed files with 71 additions and 161 deletions
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111
sys/dev/fb/fbd.c
View file

@ -165,6 +165,10 @@ fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
struct fb_info *info;
info = dev->si_drv1;
if ((info->fb_flags & FB_FLAG_NOMMAP) || info->fb_pbase == 0)
return (ENODEV);
if (offset < info->fb_size) {
*paddr = info->fb_pbase + offset;
return (0);
@ -172,103 +176,6 @@ fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
return (EINVAL);
}
static void
vt_fb_mem_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint8_t *)(sc->fb_vbase + o) = v;
}
static void
vt_fb_mem_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint16_t *)(sc->fb_vbase + o) = v;
}
static void
vt_fb_mem_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint32_t *)(sc->fb_vbase + o) = v;
}
static void
vt_fb_mem_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
uint32_t size)
{
memmove((void *)(sc->fb_vbase + offset_to), (void *)(sc->fb_vbase +
offset_from), size);
}
static void
vt_fb_indir_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
sc->fb_write(sc->fb_priv, o, &v, 1);
}
static void
vt_fb_indir_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
sc->fb_write(sc->fb_priv, o, &v, 2);
}
static void
vt_fb_indir_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
sc->fb_write(sc->fb_priv, o, &v, 4);
}
static void
vt_fb_indir_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
uint32_t size)
{
sc->copy(sc->fb_priv, offset_to, offset_from, size);
}
int
fb_probe(struct fb_info *info)
{
if (info->fb_size == 0)
return (ENXIO);
if (info->fb_write != NULL) {
if (info->fb_read == NULL) {
return (EINVAL);
}
info->fb_flags |= FB_FLAG_NOMMAP;
info->wr1 = &vt_fb_indir_wr1;
info->wr2 = &vt_fb_indir_wr2;
info->wr4 = &vt_fb_indir_wr4;
info->copy = &vt_fb_indir_copy;
} else if (info->fb_vbase != 0) {
if (info->fb_pbase == 0) {
info->fb_flags |= FB_FLAG_NOMMAP;
}
info->wr1 = &vt_fb_mem_wr1;
info->wr2 = &vt_fb_mem_wr2;
info->wr4 = &vt_fb_mem_wr4;
info->copy = &vt_fb_mem_copy;
} else
return (ENXIO);
return (0);
}
static int
fb_init(struct fb_list_entry *entry, int unit)
{
@ -329,10 +236,6 @@ fbd_register(struct fb_info* info)
return (0);
}
err = fb_probe(info);
if (err)
return (err);
entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
entry->fb_info = info;
@ -342,8 +245,10 @@ fbd_register(struct fb_info* info)
if (err)
return (err);
if (first)
vt_fb_attach(info);
if (first) {
if (vt_fb_attach(info) == CN_DEAD)
return (ENXIO);
}
return (0);
}

4
sys/dev/vt/hw/efifb/efifb.c
View file

@ -154,12 +154,8 @@ vt_efifb_init(struct vt_device *vd)
info->fb_width = MIN(info->fb_width, VT_FB_DEFAULT_WIDTH);
info->fb_height = MIN(info->fb_height, VT_FB_DEFAULT_HEIGHT);
fb_probe(info);
vt_fb_init(vd);
/* Clear the screen. */
vt_fb_blank(vd, TC_BLACK);
return (CN_INTERNAL);
}

1
sys/dev/vt/hw/fb/vt_early_fb.c
View file

@ -296,7 +296,6 @@ vt_efb_init(struct vt_device *vd)
#else
vt_efb_initialize(info);
#endif
fb_probe(info);
vt_fb_init(vd);
return (CN_INTERNAL);

86
sys/dev/vt/hw/fb/vt_fb.c
View file

@ -61,6 +61,30 @@ static struct vt_driver vt_fb_driver = {
VT_DRIVER_DECLARE(vt_fb, vt_fb_driver);
static void
vt_fb_mem_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint8_t *)(sc->fb_vbase + o) = v;
}
static void
vt_fb_mem_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint16_t *)(sc->fb_vbase + o) = v;
}
static void
vt_fb_mem_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
{
KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
*(uint32_t *)(sc->fb_vbase + o) = v;
}
int
vt_fb_ioctl(struct vt_device *vd, u_long cmd, caddr_t data, struct thread *td)
{
@ -134,20 +158,22 @@ vt_fb_setpixel(struct vt_device *vd, int x, int y, term_color_t color)
c = info->fb_cmap[color];
o = info->fb_stride * y + x * FBTYPE_GET_BYTESPP(info);
KASSERT((info->fb_vbase != 0), ("Unmapped framebuffer"));
switch (FBTYPE_GET_BYTESPP(info)) {
case 1:
info->wr1(info, o, c);
vt_fb_mem_wr1(info, o, c);
break;
case 2:
info->wr2(info, o, c);
vt_fb_mem_wr2(info, o, c);
break;
case 3:
info->wr1(info, o, (c >> 16) & 0xff);
info->wr1(info, o + 1, (c >> 8) & 0xff);
info->wr1(info, o + 2, c & 0xff);
vt_fb_mem_wr1(info, o, (c >> 16) & 0xff);
vt_fb_mem_wr1(info, o + 1, (c >> 8) & 0xff);
vt_fb_mem_wr1(info, o + 2, c & 0xff);
break;
case 4:
info->wr4(info, o, c);
vt_fb_mem_wr4(info, o, c);
break;
default:
/* panic? */
@ -183,32 +209,34 @@ vt_fb_blank(struct vt_device *vd, term_color_t color)
info = vd->vd_softc;
c = info->fb_cmap[color];
KASSERT((info->fb_vbase != 0), ("Unmapped framebuffer"));
switch (FBTYPE_GET_BYTESPP(info)) {
case 1:
for (h = 0; h < info->fb_height; h++)
for (o = 0; o < info->fb_stride; o++)
info->wr1(info, h*info->fb_stride + o, c);
vt_fb_mem_wr1(info, h*info->fb_stride + o, c);
break;
case 2:
for (h = 0; h < info->fb_height; h++)
for (o = 0; o < info->fb_stride; o += 2)
info->wr2(info, h*info->fb_stride + o, c);
vt_fb_mem_wr2(info, h*info->fb_stride + o, c);
break;
case 3:
for (h = 0; h < info->fb_height; h++)
for (o = 0; o < info->fb_stride; o += 3) {
info->wr1(info, h*info->fb_stride + o,
vt_fb_mem_wr1(info, h*info->fb_stride + o,
(c >> 16) & 0xff);
info->wr1(info, h*info->fb_stride + o + 1,
vt_fb_mem_wr1(info, h*info->fb_stride + o + 1,
(c >> 8) & 0xff);
info->wr1(info, h*info->fb_stride + o + 2,
vt_fb_mem_wr1(info, h*info->fb_stride + o + 2,
c & 0xff);
}
break;
case 4:
for (h = 0; h < info->fb_height; h++)
for (o = 0; o < info->fb_stride; o += 4)
info->wr4(info, h*info->fb_stride + o, c);
vt_fb_mem_wr4(info, h*info->fb_stride + o, c);
break;
default:
/* panic? */
@ -241,6 +269,8 @@ vt_fb_bitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask,
info->fb_height))
return;
KASSERT((info->fb_vbase != 0), ("Unmapped framebuffer"));
line = (info->fb_stride * top) + (left * bpp);
for (l = 0; l < height; l++) {
ch = src;
@ -254,19 +284,19 @@ vt_fb_bitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask,
switch(bpp) {
case 1:
info->wr1(info, o, cc);
vt_fb_mem_wr1(info, o, cc);
break;
case 2:
info->wr2(info, o, cc);
vt_fb_mem_wr2(info, o, cc);
break;
case 3:
/* Packed mode, so unaligned. Byte access. */
info->wr1(info, o, (cc >> 16) & 0xff);
info->wr1(info, o + 1, (cc >> 8) & 0xff);
info->wr1(info, o + 2, cc & 0xff);
vt_fb_mem_wr1(info, o, (cc >> 16) & 0xff);
vt_fb_mem_wr1(info, o + 1, (cc >> 8) & 0xff);
vt_fb_mem_wr1(info, o + 2, cc & 0xff);
break;
case 4:
info->wr4(info, o, cc);
vt_fb_mem_wr4(info, o, cc);
break;
default:
/* panic? */
@ -303,6 +333,8 @@ vt_fb_maskbitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mas
info->fb_height))
return;
KASSERT((info->fb_vbase != 0), ("Unmapped framebuffer"));
line = (info->fb_stride * top) + (left * bpp);
for (l = 0; l < height; l++) {
ch = src;
@ -325,19 +357,19 @@ vt_fb_maskbitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mas
switch(bpp) {
case 1:
info->wr1(info, o, cc);
vt_fb_mem_wr1(info, o, cc);
break;
case 2:
info->wr2(info, o, cc);
vt_fb_mem_wr2(info, o, cc);
break;
case 3:
/* Packed mode, so unaligned. Byte access. */
info->wr1(info, o, (cc >> 16) & 0xff);
info->wr1(info, o + 1, (cc >> 8) & 0xff);
info->wr1(info, o + 2, cc & 0xff);
vt_fb_mem_wr1(info, o, (cc >> 16) & 0xff);
vt_fb_mem_wr1(info, o + 1, (cc >> 8) & 0xff);
vt_fb_mem_wr1(info, o + 2, cc & 0xff);
break;
case 4:
info->wr4(info, o, cc);
vt_fb_mem_wr4(info, o, cc);
break;
default:
/* panic? */
@ -393,6 +425,12 @@ vt_fb_init(struct vt_device *vd)
vd->vd_height = info->fb_height;
vd->vd_width = info->fb_width;
if (info->fb_size == 0)
return (CN_DEAD);
if (info->fb_pbase == 0)
info->fb_flags |= FB_FLAG_NOMMAP;
if (info->fb_cmsize <= 0) {
err = vt_fb_init_cmap(info->fb_cmap, FBTYPE_GET_BPP(info));
if (err)

2
sys/dev/vt/hw/fb/vt_fb.h
View file

@ -36,8 +36,6 @@ int vt_fb_attach(struct fb_info *info);
void vt_fb_resume(void);
void vt_fb_suspend(void);
int fb_probe(struct fb_info *info);
vd_init_t vt_fb_init;
vd_blank_t vt_fb_blank;
vd_bitbltchr_t vt_fb_bitbltchr;

1
sys/dev/vt/hw/ofwfb/ofwfb.c
View file

@ -399,7 +399,6 @@ ofwfb_init(struct vt_device *vd)
sc->fb.fb_pbase = fb_phys;
ofwfb_initialize(vd);
fb_probe(&sc->fb);
vt_fb_init(vd);
return (CN_INTERNAL);

6
sys/powerpc/ps3/ps3_syscons.c
View file

@ -188,12 +188,8 @@ ps3fb_init(struct vt_device *vd)
lv1_gpu_context_attribute(sc->sc_fbcontext,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, 1, 0, 0, 0);
fb_probe(&sc->fb_info);
sc->fb_info.fb_flags &= ~FB_FLAG_NOMMAP; /* Set wrongly by fb_probe */
vt_fb_init(vd);
/* Clear the screen. */
vt_fb_blank(vd, TC_BLACK);
sc->fb_info.fb_flags &= ~FB_FLAG_NOMMAP; /* Set wrongly by vt_fb_init */
return (CN_INTERNAL);
}

21
sys/sys/fbio.h
View file

@ -115,19 +115,6 @@ struct fb_info;
typedef int fb_enter_t(void *priv);
typedef int fb_leave_t(void *priv);
typedef int fb_write_t(void *priv, int offset, void *data, int size);
typedef int fb_read_t(void *priv, int offset, void *data, int size);
/* XXX: should use priv instead of fb_info too. */
typedef void fb_copy_t(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
uint32_t size);
typedef void fb_wr1_t(struct fb_info *sc, uint32_t offset, uint8_t value);
typedef void fb_wr2_t(struct fb_info *sc, uint32_t offset, uint16_t value);
typedef void fb_wr4_t(struct fb_info *sc, uint32_t offset, uint32_t value);
typedef int fb_ioctl_t(struct cdev *, u_long, caddr_t, int, struct thread *);
typedef int fb_mmap_t(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
int prot, vm_memattr_t *memattr);
struct fb_info {
/* Raw copy of fbtype. Do not change. */
@ -138,16 +125,8 @@ struct fb_info {
int fb_cmsize; /* size of color map (entries) */
int fb_size; /* total size in bytes */
/* Methods. */
fb_write_t *fb_write; /* if NULL, direct mem write. */
fb_read_t *fb_read; /* if NULL, direct mem read. */
struct cdev *fb_cdev;
fb_wr1_t *wr1;
fb_wr2_t *wr2;
fb_wr4_t *wr4;
fb_copy_t *copy;
fb_enter_t *enter;
fb_leave_t *leave;